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Transformation of Active Carbon to Onion-like Fullerenes Under Electron Beam Irradiation

Published online by Cambridge University Press:  21 March 2011

Bingshe Xu ,
Husheng Jia ,
Hefeng Zhou ,
Hideki Ichinose  and
Chihiro Iwamoto
Bingshe Xu
Affiliation:
College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan, Shanxi, China, 030024
Husheng Jia
Affiliation:
College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan, Shanxi, China, 030024
Hefeng Zhou
Affiliation:
College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan, Shanxi, China, 030024
Hideki Ichinose
Affiliation:
Department of Materials Science, School of Engineering, The University of Tokyo, Tokyo, Japan, 113–0033
Chihiro Iwamoto
Affiliation:
Department of Materials Science, School of Engineering, The University of Tokyo, Tokyo, Japan, 113–0033
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Abstract

The transformation of an active carbon film with Pt nanoparticles to onion-like fullerenes has been in-situ investigated by a high-resolution transmission electron microscope. It was found that the onion-like fullerenes/metals polycrystalline film was formed under electron irradiation. The formation process was consisted of three steps: first, the flakes of onion-like fullerenes were induced by Pt nanoparticles; second, the flakes grew into a few ellipsoidal graphite shell; and third, a gradual reorganization of the formation of quasi-spheroid graphite shells and the bond of Pt particles was took place. It was a composite film of onion-like fullerenes and metal particles. It is suggested that the transformation mechanism involves an irradiation of electron and a catalytic effect of Pt nanoparticles, while any temperature rise due to electron irradiation seems to be negligibly small.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 675: Symposium W – Nanotubes, Fullerenes, Nanostructured and Disordered Carbon , 2001 , W7.5.1
Copyright
Copyright © Materials Research Society 2001

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References

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